20090214144 | Rolling element chain - A rolling element chain is applied to retain and arrange multiple rollers at intervals in a line and has a belt assembly and multiple clamping assemblies. The rollers are cylinders mounted parallelly in the rolling element chain. The belt assembly is resilient and has two parallel bars. The clamping assemblies are formed in pairs between the parallel bars to form multiple roller holes on the belt assembly and each clamping assembly has multiple clamping protrusions. The clamping protrusions of each clamping assembly are formed in a line between the parallel bars and alternately protrude oppositely away from the belt assembly and together hold the roller in the belt assembly. Each clamping protrusion has a roller surface and at least one rib. Each rib is formed on and protrudes from the roller surface, thereby, reduces contact area between the clamping protrusions and the rollers. | 08-27-2009 |